Question 1

Ratio m3h/W at speeds 220 and 400 m3h for PK125-2? Want to evaluate real energy efficiency compared to declared values.

Accepted Answer

For the Prima Klima PK125-2 extractor (125 mm) with flow rates of 220 and 400 m³/h, the power is stable at 63 W at both speeds. The m³/h/W ratio is therefore about 3.5 for 220 m³/h and 6.35 for 400 m³/h. This shows that energy efficiency is better at the higher speed, with good airflow for the same consumption. An excellent choice to optimize efficiency according to your needs.

Question 2

Can we connect this Primaklima PK125-2 extractor directly to a speed controller to finely adjust the air flow, or is it strictly limited to the two predefined speeds?

Accepted Answer

The Prima Klima PK125-2 extractor works with an AC ebm-papst motor and offers two predefined speeds, ensuring a good balance between efficiency and silence. It is not compatible with a speed controller, so the air flow adjustment is strictly limited to these two levels.

Question 3

Does this model allow the simultaneous use of both speeds to manage two different growing spaces in parallel, or is an independent extractor required for each box?

Accepted Answer

The Prima Klima 125 mm model with 2 speeds only allows the air flow to be adjusted on a single circuit at a time, alternating between its two speeds. It cannot simultaneously manage two different growing spaces as it does not have independent outlets. To ensure effective and independent extraction in two distinct boxes, an independent extractor is required for each space. This guarantees optimal control of ventilation and avoids any imbalance in air flow.

Question 4

integrable with voice assistant to adjust speeds remotely?

Accepted Answer

The Prima Klima Absaugung – 125 mm with its two speeds (220/400 m³/h) does not have native integration with voice assistants like Alexa or Google Assistant. Speed control is generally done via a manual switch. To control the ventilation remotely with your voice assistant, it would be necessary to add a compatible home automation dimmer, for example controllable via WiFi or Zigbee. This solution is external to the Prima Klima product and can provide more flexibility to your installation.

Question 5

What is the precise electrical consumption for this Primaklima PK125-2 extractor at low and high speed versus actual ventilation efficiency?

Accepted Answer

For the Prima Klima PK125-2 extractor (diameter 125 mm), the electrical consumption is constant at around 63 W whether you use low or high speed. The current fluctuates between 0.27 A and 0.29 A at 230 V. In terms of efficiency, the extraction capacity is 220 m³/h at low speed, ideal for moderate ventilation, and up to 400 m³/h at high speed for more intense air extraction. Thus, this model offers an excellent balance between controlled consumption and variable performance according to your needs.

Question 6

What is the difference in noise levels between speed 1 at 220 m³/h and speed 2 at 400 m³/h on this Prima Klima 125mm extractor?

Accepted Answer

For the Prima Klima extractor with a diameter of 125 mm and two speeds (220 m³/h and 400 m³/h), there is no precise data on the exact difference in noise levels between the two settings. Generally, Prima Klima fans are designed to be quite quiet, with a noise level of around 46 dB(A) for similar models, which corresponds to low noise.Of course, at speed 2 at 400 m³/h, the noise will be noticeably higher than at speed 1 at 220 m³/h, as a higher extraction power generates more air movement and thus more noise. However, this increase remains moderate, in line with the reputed quality of Prima Klima extractors.If noise management is a top priority, it is recommended to install the extractor on anti-vibration supports and to optimize the acoustic insulation of the growing area.

Question 7

What is the noise level of the maximum speed of this PK125-2 extractor in a real situation in a 80x80 cultivated space?

Accepted Answer

For the Prima Klima PK125-2 Extractor (125 mm, 220 / 400 m³/h, 2 speeds), the official noise level is about 46 dB(A), measured under standard conditions. In a real situation in an 80x80 cm cultivation, this noise will be slightly higher, generally around 48 to 50 dB(A) or even a bit more, especially at maximum speed (400 m³/h). This increase comes from reflections on the walls of the tent, the ducting, and any vibrations not dampened by proper mounting. However, the noise remains within the range of quality domestic fans, audible but reasonable for a space of this size.

Question 8

What is the recommended runtime for alternating the two speeds of this extractor to optimize air circulation without electrical overconsumption?

Accepted Answer

For the Prima Klima 125 mm – 2 speeds (220 / 420 m³/h), the alternation between the two speeds should be guided by the actual needs of your growing space. The low speed (220 m³/h) is ideal during periods of low activity, such as at night or in the absence of heat and high humidity, which helps limit electricity consumption while ensuring a minimum air circulation. The high speed (420 m³/h) should be used when the temperature exceeds 25°C or when humidity reaches 70%, for example during heat peaks or intense plant activity. Prolonged use at full power is not necessary and may lead to overconsumption. For optimal and automatic management, we recommend using a controller with thermostat/hygrostat, which continuously adjusts the speed according to the measured parameters, thus optimizing electricity consumption while maintaining a stable environment. In summary, there is no fixed runtime to adhere to; the most important thing is to adapt the extractor according to temperature and humidity variations, to ensure efficiency and energy savings.

Question 9

What difference in noise or electricity consumption can I expect between the two speeds of this Primaklima PK125-2 extractor?

Accepted Answer

The Prima Klima PK125-2 is designed to be very quiet in low speed mode, meaning you can expect a significantly reduced noise level compared to high speed. Regarding electricity consumption, the device consumes a total of about 63 W, but the consumption at low speed will naturally be lower due to the lesser power required. These differences ensure a balance between performance and discretion based on your ventilation needs.

Question 10

What is the precise difference between the two air flow automation speeds and how to choose the one suitable for each stage of cultivation?

Accepted Answer

The Prima Klima 125 mm fan has two speeds to adjust the air flow according to your cultivation needs: Low speed (~220 m³/h): ideal for delicate phases like germination or late flowering. It limits stress on young plants, reduces noise, and consumes less energy. High speed (~400 m³/h): suitable for the vegetative phase or for larger growing spaces. It ensures quicker air renewal, preventing excessive humidity and promoting good plant health. To choose the right speed, assess the size of your space, the density of vegetation, and the growth phase. In the active phase, prefer the high speed, while in sensitive phases, the low speed will often suffice to protect your plants.

Question 11

What is the electric consumption in watts of the extractor Prima Klima PK125-2 two speed at each speed?

Accepted Answer

The Prima Klima PK125-2 two speed extractor consumes approximately 63 watts continuously, whether you are using the low speed (220 m³/h) or the high speed (400 m³/h). The electrical intensity varies slightly, but the consumption remains stable, which is ideal for managing your setup while benefiting from an airflow suited to your needs.

Question 12

Is the Prima Klima PK125-2 extractor easy to adjust between its two speeds without risking damage to the plants during growth?

Accepted Answer

The Prima Klima PK125-2 extractor is very easy to adjust between its two speeds (220 and 400 m³/h) using a simple switch. This adjustment allows for air flow to be adapted according to the growth stage effortlessly. To avoid any risk of damaging the plants, it's important to ensure a careful installation: ducting in good condition, appropriate electrical protection, and the use of fastening sleeves to limit vibrations and noise. This way, the air flow will be optimal and there will be no unnecessary stress for your crops.

Question 13

What are the criteria to consider when choosing between the first and second speed of this Primaklima PK125-2 extractor in a multi-variety cultivation in the same space?

Accepted Answer

To choose between the first (220 m³/h) and the second speed (400 m³/h) of the Primaklima PK125-2 extractor in a multi-variety cultivation, you must mainly consider the optimal air flow according to the plants' needs. The first speed is better suited for sensitive varieties or environments where a moderate air exchange preserves humidity and avoids excessive stress. The second speed is ideal for more vigorous plants or when a rapid air exchange is necessary to expel stale air.You should also take into account the higher power consumption at the second speed and the lower noise level at the first, an important parameter in a versatile space. Lastly, ensure that the temperature does not exceed the tolerated limits (42-50°C) to guarantee effective ventilation without risk.In summary, adjust the speed to the diverse needs of your plants, the size of the space, and your energy or acoustic constraints to create a balanced microclimate.

Question 14

What is the average autonomy of this ebm-papst motor in continuous use at the maximum speed of 400m³/h in a humid environment without exceeding 30 degrees?

Accepted Answer

The ebm-papst motor from the Prima Klima extractor - 125 mm - 2 speeds - 220/420 m³/h is known for its robustness and efficiency. In continuous use at maximum speed (around 400 m³/h) in a humid environment without exceeding 30°C, there is no precise data on autonomy, but these motors are designed to provide a notable lifespan under normal usage conditions. The moderate temperature and controlled humidity promote a good lifespan, however, the lack of specific information invites to ensure regular maintenance and to avoid extreme conditions to maximize the reliability of the motor.

Question 15

What is the best way to use the two speeds of the Primaklima PK125-2 extractor to optimize ventilation according to the different growth stages of my plants in a small growing space?

Accepted Answer

The Prima Klima PK125-2 extractor offers two speeds tailored to the specific needs of your indoor cultivation: Low speed (220 m³/h): ideal for nighttime or when the temperature is below 25°C and humidity is below 70%. This speed ensures gentle ventilation, preventing plant dehydration while controlling electricity consumption. High speed (400 m³/h): recommended during the day in phases of vigorous growth (vegetative, flowering) or when the temperature exceeds 25°C and humidity approaches 70% or more. It effectively expels heat and humidity to limit stress and health issues. To maximize efficiency, pairing this extractor with a controller equipped with both a thermostat and a hygrostat is the best solution. This automatically adjusts the speed according to real conditions and stabilizes the environment while optimizing energy consumption.

Question 16

What is the electricity consumption at each speed and its impact on temperature in a confined growing space?

Accepted Answer

The Prima Klima extractor 125 mm at 2 speeds consumes about 60 W at low speed (~220 m³/h) and up to 65 W at high speed (~400 m³/h). This moderate power allows it to efficiently extract warm air from a confined growing space, reducing ambient temperature without generating excessive heat from the motor. At low speed, the ventilation offers a moderate reduction in temperature, while at high speed, the extraction is more intense, resulting in a more pronounced drop in the indoor climate. It is an ideal tool for maintaining a healthy and stable environment, preventing stagnation and overheating of plants.

Question 17

What is the difference in ventilation management between the low speed at 220 m3/h and the high speed at 400 m3/h to optimize the growth and flowering of my indoor plants?

Accepted Answer

For your Prima Klima Extractor - Diameter 125 mm - 220/400 m³/h - 2 speeds, the management between the two speeds adapts to the needs of the plants according to their stage: Low speed (220 m³/h): ideal during the growth phase, it ensures gentle ventilation, limiting stress from drafts while maintaining stable humidity. This promotes healthy development without excessively drying out young shoots. High speed (400 m³/h): recommended during flowering, it increases air renewal to meet the higher CO₂ demand, manage temperature and humidity levels, and prevent mold and diseases. It is also useful intermittently after watering to accelerate air drying. In summary, favor low speed to keep a stable environment during growth and switch to high speed during flowering to optimize the health and yield of your plants.

Question 18

Is the Prima Klima PK125 2V extractor sufficient for a small grow room 60x60 or is it better to choose a higher model?

Accepted Answer

For a grow room of 60x60 cm, which is approximately 0.72 m³ in volume, the Prima Klima PK125-2 extractor with a flow rate between 220 and 420 m³/h is more than sufficient. It ensures intensive air renewal, well beyond the 20-30 renewals per hour necessary to manage temperature and humidity in such a compact space. However, if you are using very powerful lighting, it might be wise to consider a higher model such as a Prima Klima PK150, which offers a larger flow rate. In summary, for a classic setup on 60x60, the PK125-2 is perfectly suitable and efficient.

Question 19

Is the Primaklima PK125 2-speed extractor sufficiently quiet for an 80x80 cm grow room with speed control possible without electrical modification?

Accepted Answer

The Prima Klima PK125 2-speed extractor is perfectly suited for an 80x80 cm grow room. It features a 3-position switch (220 m³/h, off, 400 m³/h) that allows for speed control without any electrical modifications.Its AC ebm-papst motor is known for its relatively quiet operation and low vibrations, ensuring good acoustic comfort, especially at the lowest speed, which is more than enough to renew the air in your space without excessive noise disturbance.In summary, you benefit from a robust, easy-to-install piece of equipment that offers an excellent compromise between efficiency and quietness for careful indoor cultivation.

Question 20

Is integration possible with home automation systems to automatically adjust the two speeds according to the needs of indoor cultivation?

Accepted Answer

The Prima Klima 125 mm – 220/400 m³/h – 2 speeds fan does not offer native home automation integration to automatically adjust its speeds according to the needs of the crop. It is manually adjusted via a switch to toggle between 220 and 400 m³/h. For automatic control, an external home automation compatible module (WiFi, Zigbee, etc.) would need to be added that can control the power supply or a dimmer, but this remains a makeshift solution limited by the design of the fan. If you are looking for more advanced automatic management with temperature or humidity-based control, we recommend exploring specialized models equipped for home automation regulation.

Prima Klima Extractor Ø125mm – 400m³/h – 2 speeds

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